Sukhoi Su-57 Felon - Technical details, Analysis and Discussion

it seems like something they would change, its too important and even they would understand its needed.

notable exceptions could be some of the su57 rear and side arrays. im fairly certain the L band arrays on the Su-57 arent LPI at all

That’s what I figured, You could still get closer to the enemy at least before you get picked up.

I meant personally. I don’t think I’ll start using IRST when Su-57 comes, unless they massively change it.

I’m not sure on that. I would assume they are (considering that Su-57 is supposed to be stealthy.)

It would probably be a good question for someone like @noister who knows muchhhhhh more about the Su-57 than I do.

Honestly I’m really interested to see how super advanced 4th gens like the Typhoon and Rafale do against 5th gens.

“When a fifth generation fighter meets a fourth generation fighter—[the latter] dies,” said Welsh. “We can’t just dress up a fourth generation fighter as a fifth generation fighter; we need to get away from that conversation,” he said.

General Mark Welsh

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I mean, yeah, makes sense for the Real World.

But War Thunder (especially ARB) isn’t even close to real life, So I’m not sure how well this applies in-game.

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if nothing is done about MCM then they will not be as good as they could be. but between IR reduction, stealth against aircraft radars, stealth vs missile radars, and other aircraft specific features i think they will completely outperform 4th gens

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I can see it now.

Su-35S and F-15EX just MCMing all the Su-57 and F-22 missiles before spamming the 5th gens down with their own.

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All good just notch everything and beat them in the doggo fight hehe

nope

still hard limited to 30km

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the same guy that made those simulations made another one with the IRST closed on the Su-57

image

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Ahh. I remember arguing on discord about how stealthy the Su-57 was.

I sent a guy this graph and he sent back a quora post from a USAF pilot, saying his was more authoratative.

Fun times.

the Su-57 RCS is definetly not as bad as most ppl are claiming
their main argument is “but you can see the compressor blades, so bad RCS”

the thing is that the Su-57 dosent have static intakes like the F-22 or F-35 but normal intake ramps that will close at higher speeds to slow down the air that hits the engines

Spoiler

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and even when they are open you cant fully see the engine face
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so at a high speed long range bvr fight the doors would be closed so that the engines arent dying
which is also the part where stealth matters the most

once you start to manouver and getting closer to the target the intake ramps will open up to let more air into the engines and if it starts becoming a dogfight they will be fully open but at that point stealth dosent really matter anymore

but most ppl dont want to, or dont care about any nuanced take, so they rather parrot what news articles said where they took the average RCS out of the Su-57 patent and spreaded it as if its the frontal RCS

Spoiler

line from the patent:
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ИЗ №2502643

one of the many articles
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According to Sukhoi, the Su-57 would have a radar cross section equal to or greater than the Rafale…

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I told someone about this and they raised an interesting question.

Wouldn’t the doors hamper the engine performance?

variable intake geometry isnt anything new
most fameously done in the F-14
:sob:

Spoiler

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and no it wouldnt becasue the intake ramps can controll the airflow so that you always have the most possible ammount of air getting to the engine while keeping the air subsonic to not damage the engines

DSI intakes like on the F-16, F-22 and F-35 are optimized for specific speed ranges and will lose efficency outside of those speed ranges
as an example the F-22 can fly around Mach 2.5 (maybe faster isnt really important for the argument) that means that the intake needs to be made in a way where the air entering the intake gets slowed down enough to not damage the engines
but the intake geometry needed for that is different from optimally slowing down Mach 1.5 air to the level the engine needs

but the advantage DSI intakes have is that they are overall lighter and need less maintanance due to no moving parts

I mean yeah but on the 57 it seems slightly different
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Wouldn’t they need to be fully down to cover the blades?

and that is where they would be at high speeds

If the grid covers the entire intake (like seen in the photos) that would still reduce perfomance, no?

it dosent
image

the intake ramp only goes to about where the flat wall inside the intake goes

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Oh so it’s basically a variable geometry intake but stealth?

Nifty.